Summary:- Our guard relay family has been under a sustained circuit-building DoS wave since 2026-06-25 23:00 UTC, still ongoing: open circuits at 20x peak and 8x sustained, onionskin load 7x, stream creation 12x -- but bandwidth only +20%. Millions of near-idle circuits. See the attached charts (fleet open circuits, onionskin processing, and bandwidth, Jun 10 - Jul 10).- Impact contained so far: tor's DoS defenses engaged, brief onionskin drops on a small subset of relays, consensus flags dipped ~5%, zero TCP port exhaustion and zero global rate-limit events.<...>
Is anyone else seeing this since Jun 25? Happy to share more detail.
I run the non-exit relay 8F6A78B1EA917F2BF221E87D14361C050A70CCC3
I have seen weird circuit behavior since about July 1st. Number of circuits are much higher than normal, about 120k instead of 80k. Every 2 hours, on the hour, the number of circuits drops before quickly climbing back to the high level.
What do you mean by "tor's DoS defenses engaged"? The automatic ones or something of your own?
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